Self-threading loom-shuttle.



No. 673,823. Patented May 7, I90I. E. S. STIMPSDN. sl-:LF THREAnmG Loom SHUTTLE.

' (Application led Tune 23, 1900.)

(Nn Modal.)

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aan time DRAPER COMPANY, OF SAME SELF-THREADING SPECIFICATION forming part of Letters Patent No. 673,823, dated May 7,

Application filed .Tune 23, 1900.

To a/ZZ whom, it may concern:

Be it known that I, EDWARD S. STIMPsoN, a citizen of the United States, residing at Hopedale, in the count-y of Worcester and State of Massachusetts, have invented an Improvement in Self-Threading Loom-Shuttles, of which the following description, in connection with the accompanying drawings, is a specication, like characters on the drawings representing like parts.

This invention has for its object the production of an improved self-threading shuttle particularly adapted for use in automatic looms-such, for instance, as shown in United States Patent No. 529,940-wherein the tilling-carriers are automatically inserted in the shuttle when the filling is to be replenished.

In my present invention I have simplified the construction of the threading' device and also that of the device for engaging and holding the head of the filling-carrier when it is inserted in the shuttle.

Various novel features of construction will be hereinafter described, and particularly pointed out in the following claims.

Figure 1 is a top or plan view of a selfthreading shuttle embodying my invention. Fig. 2 is an enlarged longitudinal section of the left-hand end thereof on the line a: x, Fig. 1. Fig. 3 is a similar section, also enlarged, of the right-hand end, viewing Fig. 1. Fig. et is a transverse sectional view of the shuttlc-body on the line on' co', Fig'. 2, looking to the left. Fig. 5 is an enlarged perspective view of the threading end of the shuttle. Figs. 6, 7, and 8 are detail views in elevation of the threading-block, to be described; and Fig. 9 is an enlarged perspective view of the device for holding the filling-carrier in position.

The shuttle-body A, having a longitudinal opening A therein, open from top to bottom of the body to receive the lilling-carrier and to permit the passage of the same therethrough when ejected, is of usual construction, and at one end of the opening The body is recessed at a, Figs. 2 and 4, to receive the holder h, Fig. 9, made as a block having parallel upright sides and iiat parallel top and bottom faces. At its rear end the holder has a transverse shoulder h formed in its top,

PLACE AND PORTLAND, MAINE.

LOOM-SHUTTLE.

1901. Serial No. 21,266. (No model.)

and a lip h2 projects from said end at the bottom to enter an extension a of the recess e in the shuttle-body, the front end of the holder having two spring jaws or arms hX, which extend into the opening A. These jaws are preferably grooved, as at 3, to receive the usual annular projections or rings on the head of the iilling-carrier, which is thusengaged and held securely in position in the opening A of the shuttle.

I have shown an inclined directing-plate or guide g to assist in directing the fillingcarrier into position, the guide being located between the jaws, and preferably it is made of resilient metal, the lower end ot the guide being bent back at g to extend beneath the holder h, between it and the bottom a? of the recess a, and fitting into the socket a'. The upper end of the guide is bent down at g2, and then rearwardly extended, as at g3, upon the top of the holder, a transverse downturned lip g4 engaging the shoulder h' and positively locking the holder and guide together, the bend g2 permitting the guide to spring or yield somewhat under impact of the illingcarrier head.

Referring to Fig. 9, it will be seen that the extensions g g3 project beyond the sides of the holder, and they enter, respectively, longitudinal grooves a5 a6, Fig. 4, near the top and at the bottom of the recess a, so that when the parts are in place they are firmly held together, the socket a forming a continuation of the grooves a6. By this construction a single screw 10, passed through the holder into the walls of the shuttle-body, serves to retain the holder and guide in place, doing away with a separate screw for the latter, the spring is better adapted to stand the strain of the blows, and the whole arrangement is more durable and stronger than heretofore.

At its forward end the shuttle is provided with the threading device, the wood being recessed at l), Fig. 3, to receive the metal threading-block, to be described, and at the abjacent end of the opening A the body is cut out in front of the tip of the filling-carrier, as at b, and provided with a longitudinal groove b2 for the thread to travel in asit leaves the filling-carrier.

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The threading-block d is a single casting havinga longitudinal thread-passage cltherethrough in alinemeut with the groove b2 and' an overhanging laterally-extended head cl2 substantially triangular in shape. One side wall of the passage Cl is longitudinally slotted at d3, as by a saw-cut, to form a thread-entrance to the passage, and the exterior face of the wall above it is flared or beveled, as at S, the top edge of the wall below the slot being also beveled, but oppositely, as at 9, Fig. 7, giving a wide or flaring mouth for the thread-entrance, so that the thread can easily pass thereinto. The thread passage and thread-entrance extend in the direction of the longitudinal axis. of the shuttle, as shown. The apex of the head is downturned, as at d4,

into a recessed portion b3 of the shuttle-body,

beyond and in front of the front end of the thread-passage, and an inclined horn d5, best shown in Fig. 6 at the side of the passage opposite the slot d3, serves to guide thev thread to the side delivery-eye alo in the shuttlebody, the block being cutaway at the bottom of horn, as at d6, substantially opposite the inner end of the delivery-eye. One corner of the head is bent down, as at all, to register with the rear wall of the delivery-eye, (see Fig. 5,) a clearance-space b4 for the thread to travel in being formed between the top of the shuttle-body and the head intermediate the prong (17 and downturned tip d4 of the head.

In order to aid the thread in passing to the entrance-slot cl3, the body of the shuttle is beveled opposite the slotted side wall of the thread-passage, as at d5. As the thread or 'yarn is drawn offA the filling-carrier on the first shot of the shuttle to the left it enters between the inclined walls d5 and 8, passes under the tip d4, and by the beveled faces 8 9 is directed into the thread-entrance cl3, and thence enters the passage d of the threading-block. As the shuttle returns the thread passes beneath the head in the clearancespace b4 toward the prong all, and the horn d5 Iguides the thread to the bottom of the passage d and into the cut-away portion d6, from which it passes directly to the delivery-eye 61,10, the wall 1,12 of the shuttle-body helping to guide the thread fairly into the eye. The tip d4 prevents the thread from jumping out after it enters the passage d before it reaches the eye 0,10. A threaded shank d8, onv the block passes through a hole in the shuttle and is held in place by a suitable nut l5, Fig.

The construction described is simple and cheap, and with the threading device shown the metal is all on one side and the wood of the shuttle-body on the other side of the opening which leads to the thread-entrance.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. Al longitudinally-open shuttle-body, a holder mounted in the body at one end thereof and having jaws to engage the head of a filling-carrier, an inclined guide between the jaws, a positive detachable connection between it and the holder, and a retaining device to secure the latter in the shuttle-body, the guide being held in place solely by its positive connection with the holder.

2. A loom-shuttle having an opening therein from top to bottom, a holder mounted in the body at one end of the opening and provided with jaws to engage the head of a filling-carrier, an inclined resilient guide between the jaws, said guide having a rearward extension interlocked with the holder, and a retaining device to maintain the latterin the shuttle-body.

3. A shuttle-body having a longitudinal opening for the reception and passage therethrough of a filling-carrier, a holder having jaws to receive the head of the iilling-carrier, an inclined guide extended between the jaws and having a downturned lip to engage the end of the holder, and means to secure the holder, and thereby the guide, in the shuttlebody.

4. A loom-shuttle having a longitudinal opening for the reception of the filling-carrier, a longitudinally-grooved recess in the shuttle-body at one end of the opening, a holder inserted in said recess and having jaws to engage the head of a filling-carrier, an inclined guide between the jaws having a rearward extension projecting into the said l grooves and interlocked with the holder, and

a retaining device to secure the holder in place.

5. A shuttle-body havinga recess in one end thereof provided with longitudinal grooves, a

holder inserted in the recess and having spring-jaws to engage the head of a fillingcarrier, and a resilient inclined guide between the jaws, the ends of the guide being extended rearwardly to embrace the holder and to enter the grooves in the shuttle-body.

6. A holder having a pair of spring-jaws tol engage the end of a filling-carrier, said holder having on its top a transverse shoulder at its end opposite the jaws, and a cooperating guide inclined between the jaws and having its ends bent back to receive between them the holder,

one end having a lip to engage the shoulder on the holder.

7. In an automatically-self-threading shuttle, a block provided with a thread-passage having a thread-entrance in one of its longitudinal side walls, said passage and entrance being extended longitudinally of the shuttle, the outer face of the said side wall being beveled outwardly from the said entrance to the top of the block.

8. In an automatically-self-threading shuttle, a block provided with a thread-passage having a thread-entrance in one of its longitudinal side walls, said passage and entrance being extended longitudinally of the shuttle, the overhanging portion of said wall being externally beveled and the top of the lower portion of the wall being oppositely beveled.

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9. In an autom atically-self-threading sh nttle, a block having a thread-passage therethron gh,havin ga side slot forming the threadentranee, said passage and entrance being eX- tended longitudinally of the shnttle,the edges of the slot being externally iiared, and a horn the head of which extends beyond the front end of the thread-passage, the liead being provided with a thread-detent.

l0. In an autoinatioally-self-threading shuttle having a side delivery-eye, a block having a longitudinal thread-passage therethrough substantially in the longitudinal axis of the shuttle, a horn having a substantially triangular head the apex of which is downtnrned beyond the front of the thread-passage, a depending prong on the head, to assist in gniding the thread into the de1ivery-eye, and a longitudinal side entrance for the thread-pas sage, the shuttle-body being recessed ad jacent thereto and beveled, to direct the thread into the entrance.

In testimony whereof I have signed my name to this speoiication in the presence of tWo subscribing Witnesses.

EDWARD S. STIMISON.

Witnesses:

GEORGE OTIs DRAPER, ERNEST W. Woon. 

